How do i fix this????

im in germany, im visiting my uncle, we spent a night at his friends house a little while ago, and i connected to her internet/wifi by staring her virtual router, we are spending the night again, and it is not working. she doesnt know anything about the whole computer thing, but her router is a O2 and is connected to her laptop and her home phone and she doesnt know how to turn on the wireless internet, and her laptop is plugged into the router, so she doesnt have anything else connected to the internet. please help. i really need to speak with my sister in america. i was only sent on this trip to tell my uncle his sister has passed. i really want to see my sister through facetime, we dont have internet at my uncles. he doesnt have a job, he cant afford that kind of stuff.

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